| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_f0c17fb0be15e18e811be589c822b4c8 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B2027-014
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B2027-0138
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B2027-0178 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-0093
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-4244
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-1006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-1828
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B5-1809
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-0172 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B27-01 |
| filingDate |
2020-10-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c1372b349bfbab8f8abeffb5d85d4cb
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2e8cea43b32cc448ebb0abc0f112c822 |
| publicationDate |
2022-09-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-4058838-A1 |
| titleOfInvention |
High-index waveguide for conveying images with low period outcoupling grating |
| abstract |
A waveguide display includes an image light source for emitting polychromatic image light, and a waveguide (210) of high-index material for transmitting polychromatic image light to an eyebox. The waveguide has an input grating (230) and an offset output grating (240). The output grating is configured so that ambient light diffracted by the output grating is directed away from the eyebox or out of at least a central portion of the field of view so as to lessen the appearance of visual artifacts. The maximal field of view (244) is equivalent to the input field of view (234) and requires a grating pitch below an upper limit for the lowest wavelength used, i.e. for blue. |
| priorityDate |
2019-11-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |